Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Onde o personagem de Aiden Burn, detetive do CSI, apareceu pela primeira vez?
 ###Tabelas: CREATE TABLE main_characters (main_characters_id AUTO_INCREMENT PRIMARY KEY, Character VARCHAR, Portrayed by VARCHAR, First appearance VARCHAR, Last appearance VARCHAR, Duration VARCHAR, Episodes VARCHAR) CREATE TABLE quarterfinal_2 (quarterfinal_2_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Athlete VARCHAR, Country VARCHAR, Time VARCHAR, Notes VARCHAR) CREATE TABLE largest_nordic_companies_according_to_forbes (largest_nordic_companies_according_to_forbes_id AUTO_INCREMENT PRIMARY KEY, Rank VARCHAR, Company VARCHAR, Headquarters VARCHAR, Industry VARCHAR, Revenue (billion $ ) INT, Profits (billion $) INT, s Asset (billion $) INT, Market value (billion $) INT) CREATE TABLE private_schools (private_schools_id AUTO_INCREMENT PRIMARY KEY, School VARCHAR, Grades VARCHAR, Affiliation VARCHAR, Student Body VARCHAR, Enrollment INT) CREATE TABLE mixed_doubles:_7_5_titles_2_runner-ups (mixed_doubles:_7_5_titles_2_runner-ups_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Surface VARCHAR, Partner VARCHAR, Opponents in the final VARCHAR, Score in the final VARCHAR)  
SELECT First appearance FROM main_characters WHERE Character = aiden burn csi detective